What is the value of y, when x = 3 and y = 5 + 4x?

y = 5 + 4x

y = 5 + 4(3) {substituted 3, in for x, into the equation}

y = 5 + 12 {multiplied 4 by 3}

y = 5 + 4(3) {substituted 3, in for x, into the equation}

y = 5 + 12 {multiplied 4 by 3}

**y = 17**{added}*- Algebra House*